2019 Nissan Frontier Bulb Size Guide

Quick Reference

The 2019 Nissan Frontier, a robust and reliable pickup, primarily utilizes halogen and incandescent lighting throughout its various trims (S, SV, SL, Pro-4X, Desert Runner). Unlike some newer vehicles, the 2019 Frontier does not typically offer OEM LED headlights or fog lights as standard or optional equipment across all trims. This means most owners will find their truck equipped with traditional bulbs, offering a straightforward upgrade path for those looking to switch to LED.

LED vs Halogen Upgrade Considerations

Upgrading your 2019 Nissan Frontier from halogen to LED bulbs can significantly improve visibility and modernize its appearance. However, there are a few key considerations to keep in mind:

• CANBUS Errors: The 2019 Frontier's electrical system is generally not as sensitive to LED upgrades as some luxury vehicles. However, when replacing exterior lights like turn signals or brake lights, you might encounter "hyper-flashing" (rapid turn signal blinking) or "bulb-out" warnings on your dashboard. This occurs because LED bulbs draw significantly less power than their incandescent counterparts, leading the vehicle's computer to believe a bulb is burnt out. To resolve this, you'll typically need to install CANBUS-compatible LED bulbs or load resistors. Load resistors mimic the power draw of incandescent bulbs, tricking the vehicle's system into proper operation. For headlights and fog lights, CANBUS errors are less common, but some aftermarket LED kits come with built-in decoders to prevent potential issues.
• Adapters Needed: For most exterior bulb replacements, direct plug-and-play LED bulbs are available that fit into the existing socket. However, for headlight and fog light upgrades, while the bulb base (e.g., H11, H9) will be the same, some aftermarket LED kits may have larger cooling fans or heat sinks. This could potentially require minor modifications to the dust caps or headlight housing to ensure a proper fit and adequate ventilation. Always check the dimensions of your chosen LED bulbs against the available space in your Frontier's light housings.
• Beam Pattern: When upgrading headlights and fog lights to LED, pay close attention to the beam pattern. Poorly designed LED bulbs can scatter light excessively, blinding oncoming drivers, or create an inconsistent light output. Look for LED bulbs specifically designed with beam patterns that closely mimic the original halogen bulbs to ensure proper road illumination and minimize glare. Adjusting headlight aim after an LED upgrade is often a good practice.

How to Replace Each Bulb

Replacing bulbs on your 2019 Nissan Frontier is a relatively simple DIY task for most locations. Always refer to your owner's manual for specific instructions and safety precautions.

• Headlights (Low Beam H11, High Beam H9): Access is typically from under the hood. For the low beams, you'll usually twist and pull the old bulb out. High beams are similar. Ensure the new bulb is oriented correctly before twisting it back into place. Avoid touching the glass of halogen bulbs with bare hands.
• Fog Lights (H11): Access is usually from under the vehicle or by removing the inner fender liner in the wheel well. Some models might require removing a few clips or screws.
• Daytime Running Lights (1157A) / Front Turn Signals (1157A): These are often in the same housing as the headlights. Access is from under the hood. Twist the socket counter-clockwise to remove the assembly.
• Rear Turn Signals (3157) / Brake Lights (3157) / Tail Lights (3157): These bulbs are all housed within the rear taillight assembly. Open the tailgate, remove the two or three retaining screws on the inside edge of the taillight housing, and carefully pull the assembly straight back. Twist the bulb sockets to remove the bulbs.
• Reverse Lights (7440): Similar to the rear turn/brake/tail lights, access is by removing the entire taillight assembly.
• License Plate Lights (168): These are accessible by removing a couple of screws that hold the plastic lens cover in place above the license plate.
• Front Side Markers (168): These are typically integrated into the headlight assembly and can be accessed from under the hood by twisting out the socket.
• Dome Light (31MM Fuse Type Festoon) / Map Lights (168): For the interior lights, you'll need a small plastic trim removal tool or a flat-head screwdriver (used carefully) to pry down the plastic lens covers. The dome light is a festoon-style bulb, which simply pops out of its clips. The map lights are wedge-style bulbs that pull straight out.

Common Lighting Issues for This Generation

While the 2019 Nissan Frontier is generally reliable, some common lighting issues reported for this generation include:

• Burned-Out Incandescent Bulbs: This is the most common issue, especially for frequently used lights like brake lights, turn signals, and headlights. Regular inspection and replacement are part of routine maintenance.
• Corroded Sockets: Exposure to moisture and road salt can lead to corrosion in bulb sockets, particularly for exterior lights. This can cause intermittent bulb operation or complete failure. Cleaning the contacts with electrical contact cleaner or replacing the socket may be necessary.
• Flickering Headlights: While less common, flickering headlights can sometimes indicate a loose connection, a failing ballast (if aftermarket HID), or a voltage regulation issue. This should be diagnosed by a professional.
• Cloudy or Yellowed Headlight Lenses: Over time, the plastic headlight lenses can degrade due to UV exposure, causing them to become hazy or yellow. This significantly reduces light output and can fail vehicle inspections. Headlight restoration kits are available, or replacement housings may be needed for severe cases.

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